Importance

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Abstract

An object of the present invention is to provide a starting device which is prevented from operating erroneously, thus being high in reliability, and which, being simple in structure, is assembled with high efficiency, and is accordingly low in manufacturing cost. The starting device, according to the present invention, adapted to strike a detonator (10) in response to an acceleration higher than a predetermined value to activate a gas generator (8). In the staring device, an igniting pin (22) adapted to move towards the detonator (10) to collide with the detonator thereby to ignite the detonator is provided. An inertial body (23) is made of a permanent magnet for supplying kinetic energy to the igniting pin (22). An annular permanent magnet (24) the inside diameter of which is larger than the outside diameter of the inertial body (23) is provided. The inertial body (23) is moved towards the detonator when the force of inertia of the inertial body becomes greater than a magnetic repulsion force between the annular permanent magnet (24) and the inertial body (23), thereby a detonator (10) is struck.

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First Claim